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811026216 = 233371131331
BaseRepresentation
bin110000010101110…
…100011100101000
32002112002101211000
4300111310130220
53130110314331
6212251035000
726045415630
oct6025643450
92075071730
10811026216
11386892000
121a773ba60
13cc043890
14799d96c0
154b3040e6
hex30574728

811026216 has 512 divisors, whose sum is σ = 3148185600. Its totient is φ = 188179200.

The previous prime is 811026187. The next prime is 811026239. The reversal of 811026216 is 612620118.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 811026216.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26162121 + ... + 26162151.

It is an arithmetic number, because the mean of its divisors is an integer number (6148800).

Almost surely, 2811026216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 811026216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1574092800).

811026216 is an abundant number, since it is smaller than the sum of its proper divisors (2337159384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

811026216 is a wasteful number, since it uses less digits than its factorization.

811026216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 811026216 is about 28478.5220122112. The cubic root of 811026216 is about 932.5632512973.

The spelling of 811026216 in words is "eight hundred eleven million, twenty-six thousand, two hundred sixteen".